CN102004030A - Vibration measuring test bed for vibration absorber - Google Patents
Vibration measuring test bed for vibration absorber Download PDFInfo
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- CN102004030A CN102004030A CN 201010533126 CN201010533126A CN102004030A CN 102004030 A CN102004030 A CN 102004030A CN 201010533126 CN201010533126 CN 201010533126 CN 201010533126 A CN201010533126 A CN 201010533126A CN 102004030 A CN102004030 A CN 102004030A
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Abstract
The invention discloses a vibration measuring test bed for a vibration absorber, which comprises a base, a motor, a first vibrating shaft, a swing shaft, an excitation box, a vibration sensor and a vibration measurer, wherein the first vibrating shaft is connected with the motor through a driving belt and is an eccentric shaft, or an eccentric device is arranged on the first vibrating shaft; the swing shaft is supported on the base; a vibration absorber positioning disc and a vibration signal disc are arranged at one end of the swing shaft; the excitation box is sleeved on the swing shaft; two sides of the excitation box are respectively connected with a back support through springs; the back support is arranged on the base; the first vibrating shaft is supported on the excitation box; the vibration sensor is arranged on the base and separated from a vibration transmitting rod for a preset distance; and the vibration measurer is connected with the vibration sensor. In the invention, the rotation of the vibration absorber is converted into oscillating motion at a certain frequency along the center of the vibration absorber; the sensor picks up the swing amplitude value; the swing amplitude value is converted into a current value which is displayed on the vibration measurer; and after the current value is stable, the current value is compared with the current value of a standard vibration absorber to judge whether the product vibration absorber is qualified or not.
Description
Technical field
The present invention relates to the damper technique field, more particularly, relate to a kind of vibration damper vibration measuring testing table.
Background technology
Engine silicon oil damper (hereinafter to be referred as vibration damper) is an important spare part that is contained in the engine crankshaft rear end, its effect is to avoid engine in operational process, owing to the variation meeting of load produces the increase of moment moment of torsion or the damage that minimizing causes engine crankshaft to bent axle.So the ratio of damping of produced vibration damper must be in specialized range, to reach and to satisfy the designing requirement of engine.In order to verify whether produced each vibration damper can reach the ratio of damping of designing requirement, at present, the test of must installing in the laboratory if still install test in the laboratory, is the needs that can't satisfy batch process.
Test if directly do simple the rotation by the driven by motor vibration damper, just changes on time moment when starting during vibration damper to some extent, observes to be difficult for, and the method that more is difficult for increasing or reduce vibration damper silicone oil is adjusted the resistance of shock absorber coefficient.
Need badly at present and a kind ofly convenient judge that whether qualified vibration damper is, and can satisfy the vibration damper vibration measuring testing table that becomes to produce needs in batches.
Summary of the invention
In view of this, the invention provides a kind of vibration damper vibration measuring testing table, need not in the laboratory, also can to judge that conveniently whether qualified vibration damper is.
For achieving the above object, the invention provides following technical scheme:
A kind of vibration damper vibration measuring testing table comprises:
Base;
Be arranged on the motor on the described base;
With first vibrating shaft that described motor links to each other by chain transmission or band transmission, described first vibrating shaft is excentric shaft or which is provided with decentralizing device;
Swing shaft, on described base, the one end is provided with vibration damper positioning disk and vibration signal dish by bearings, is connected with the vibration transmission bar on this vibration signal dish;
The exciting case, it is set on the described swing shaft, these exciting case both sides link to each other with rear support by spring respectively, this rear support is arranged on the described base, described first vibrating shaft by bearings on this exciting case;
Be arranged on the described base, and with the described vibration transmission bar vibration transducer of predeterminable range at interval;
The vialog that links to each other with described vibration transducer.
Preferably, in above-mentioned vibration damper vibration measuring testing table, described first vibrating shaft is provided with first gear, and this first gear is provided with decentralizing device.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise second vibrating shaft, this second vibrating shaft is provided with second gear with described first gearing mesh, and this second gear is provided with decentralizing device.
Preferably, in above-mentioned vibration damper vibration measuring testing table, described vibration transmission bar is the plane towards that face of described vibration transducer.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise the terminal pad that is set on the described swing shaft, be contained on the described terminal pad with the crack engage sleeves between described vibration damper positioning disk, and by screw retention on this terminal pad, described vibration signal dish by screw retention on this terminal pad.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise the sensor mount that is arranged on the described base, this sensor mount is provided with pilot hole, described swing shaft is located on the described pilot hole by bearing bracket stand, and described vibration transducer is arranged on this sensor mount.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise the adjustment bolt that is threaded on the described rear support, described spring one end links to each other with described exciting case, and the other end links to each other with described adjustment bolt.
Preferably, in above-mentioned vibration damper vibration measuring testing table, comprise also and control desk that the power line of described motor is connected with the frequency converter of described control desk.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise the motor speed measuring gear on the output shaft that is arranged on described motor, on the described base, and be provided with near switch by support on the position relative with described motor speed measuring gear, this is connected with the velocity indicator of described control desk near switch.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise by being bolted to the motor installation base on the described base, described motor is bolted on the described motor installation base by adjustment, described adjustment bolt one end is fixed on described motor installation base by the nut and the nut of its head, and the other end is stated the bedplate of motor by two nut clip residences.
From above-mentioned technical scheme as can be seen, compare with prior art, the present invention is excentric shaft or is provided with decentralizing device owing to first vibrating shaft, when so it rotates by driven by motor, can vibrate, connection band exciting case vibration simultaneously, and make the exciting case along the axis reciprocally swinging of swing shaft, carry the reciprocal rotation of swing shaft simultaneously.The present invention converts to along the center of vibration damper by the rotation with vibration damper and does oscillating motion with certain frequency.Pick up the amplitude of fluctuation value with sensor, the amplitude of fluctuation value is converted to current value, show on vialog, the current value with the standard vibration damper after current value is stable contrasts, and judges the whether qualified of product vibration damper.Vibration damper vibration measuring testing table provided by the invention is in order to check the verifying bench that whether satisfies the desired ratio of damping of design to assembling produced silicon oil damper product, its function is artificial frequent moment that vibration damper is carried out to turn to variation, observes the vibration damping amplitude.Under same vibration frequency, compare by amplitude data and the product vibration damper that extracts the standard vibration damper, if the amplitude of product vibration damper is identical with the amplitude of standard vibration damper, the ratio of damping that shows the product vibration damper is also identical with the ratio of damping of standard vibration damper, amplitude and standard vibration damper as the fruit product vibration damper are variant, can amplitude be adjusted in the margin tolerance of regulation by increasing or reduce the method for vibroshock silicone oil, the product vibration damper is adhered to specification.The standard vibration damper is that the chamber test obtains by experiment.Obtain the tolerance of amplitude by the test of a plurality of standard vibration dampers.Solved fundamentally that vibration damper is produced in batches and the demand of testing authentication, the present invention has low cost of manufacture, and energy consumption is low, the testing efficiency height, and test data is characteristics such as superiority accurately.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the vibration damper vibration measuring testing table that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the partial enlarged drawing of C among Fig. 1;
Fig. 3 is the cut-open view of Fig. 1 along the A-A line;
The partial schematic diagram of the vibration damper vibration measuring testing table that Fig. 4 provides for the embodiment of the invention;
Fig. 5 is that the B of Fig. 4 is to view.
Embodiment
The invention discloses a kind of vibration damper vibration measuring testing table, need not also can to judge that conveniently whether qualified vibration damper is in that engine test is indoor.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1-Fig. 5, the structural representation of the vibration damper vibration measuring testing table that Fig. 1 provides for the embodiment of the invention, Fig. 2 is the partial enlarged drawing of C among Fig. 1, Fig. 3 is the cut-open view of Fig. 1 along the A-A line, the partial schematic diagram of the vibration damper vibration measuring testing table that Fig. 4 provides for the embodiment of the invention, Fig. 5 are that the B of Fig. 4 is to view.
Vibration damper vibration measuring testing table provided by the invention comprises: base 21, motor 1, first vibrating shaft 13, swing shaft 10, exciting case 12, vibration transducer 28 and vialog 2.Wherein, base 21 is the mount pad of whole test platform, has the effect of frame concurrently.Motor 1 is arranged on the described base 21, and first vibrating shaft 13 links to each other by chain transmission or band transmission with described motor 1, preferably adopts the vee belt transmission in the present embodiment, and promptly motor 1 passes to first vibrating shaft 13 with its rotary power by vee belt.It should be noted that first vibrating shaft 13 is excentric shaft or which is provided with decentralizing device, therefore, when first vibrating shaft 13 rotates, can vibrate owing to action of centrifugal force produces.On described base 21, the one end is provided with vibration damper positioning disk 5 and vibration signal dish 6 to swing shaft 10 by bearings, is connected with vibration transmission bar 9 on this vibration signal dish 6.Wherein, vibration damper positioning disk 5 is used for mounting dampers, and vibration signal dish 6 is used for mechanical oscillation signal is sent by vibration transmission bar 9.
The present invention is owing to first vibrating shaft 12 is excentric shaft or is provided with decentralizing device, so when driving its rotation, can vibrate, simultaneously 12 vibrations of connection band exciting case by motor 1, and make exciting case 12 along the axis reciprocally swinging of swing shaft 10, carry swing shaft 10 reciprocal rotations simultaneously.The present invention converts to along the center of vibration damper by the rotation with vibration damper 4 and does oscillating motion with certain frequency.Pick up the amplitude of fluctuation value with vibration transducer 28, the amplitude of fluctuation value is converted to current value, show on vialog 2, the current value with the standard vibration damper after current value is stable contrasts, and judges the whether qualified of product vibration damper.Vibration damper vibration measuring testing table provided by the invention is in order to check the verifying bench that whether satisfies the desired ratio of damping of design to assembling produced silicon oil damper product, its function is artificial frequent moment that vibration damper is carried out to turn to variation, observes the vibration damping amplitude.Under same vibration frequency, compare by amplitude data and the product vibration damper that extracts the standard vibration damper, if the amplitude of product vibration damper is identical with the amplitude of standard vibration damper, the ratio of damping that shows the product vibration damper is also identical with the ratio of damping of standard vibration damper, amplitude and standard vibration damper as the fruit product vibration damper are variant, can amplitude be adjusted in the margin tolerance of regulation by increasing or reduce the method for vibroshock silicone oil, the product vibration damper is adhered to specification.The standard vibration damper is that the chamber test obtains by experiment.Obtain the tolerance of amplitude by the test of a plurality of standard vibration dampers.Solved fundamentally that vibration damper is produced in batches and the demand of testing authentication, the present invention has low cost of manufacture, and energy consumption is low, the testing efficiency height, and test data is characteristics such as superiority accurately.
Concrete, swing shaft 10 rear ends connect with excessive fit system with double-row radial ball bearing, connect adjustment and the fixing position of double-row radial ball bearing on swing shaft 10 and rear support 14 with gap fiting mode in rear support 14 front and back ends with bearing cap.Double-row radial ball bearing connects with excessive fit system with rear support 14, is installed with oil sealing in the bearing cap, with each 4 housing screw of two sides bearing cap-4 is pressed on the rear support 14.4 bearing housing screws of rear support 14 usefulness are fixed and clamped on base 21.
First vibrating shaft 13 is provided with first gear 16, and this first gear 16 is provided with decentralizing device 25.First vibrating shaft 13 can connect with excessive mode with first gear 16, and fixes the position of first gear 16 with lining, transmits rotating speed and moment of torsion with the gear flat key.Driven pulley 17 is connected on described first vibrating shaft 13 by key, and by driving belt 18, and the driving pulley 19 on motor 1 output shaft is given first vibrating shaft 13 with the transmission of power of motor 1.First vibrating shaft, 13 two ends connect with excessive fit system with single row angular contact ball bearing respectively, with bearing cap two ends are fixed, and are fixedly connected on exciting case 12 with the bearing cap housing screw.Decentralizing device 25 can be attached pouring weight, is fixedly connected on first gear 16 with spring washer and housing screw, when first gear 16 rotates, produces the wobble amplitude of exciting case 12 because of decentralizing device 25.
In order to increase the wobble amplitude of exciting case 12, the present invention can also comprise second vibrating shaft 15, and this second vibrating shaft 15 is provided with second gear with 16 engagements of described first gear, and this second gear also is provided with decentralizing device 25.Can improve the amplitude of vibrating when rotating by two eccentric gears, thereby improve the wobble amplitude of exciting case 12, for vibration transducer 28 provides enough oscillator intensities.
Second vibrating shaft 15 can connect with transient mode with second gear, fixes the position of second gear with lining, transmits rotating speed and moment of torsion with the gear flat key.Each connects second vibrating shaft, 15 two ends in the transition fit mode with single row angular contact ball bearing, with bearing cap two ends is fixed.The two sides respectively is fixedly connected on exciting case 12 by 4 bearing cap housing screws.
The present invention also comprises the terminal pad 7 that is set on the described swing shaft 10, being sleeved on the described terminal pad 7 of described vibration damper positioning disk 5 clearance fit, and by screw retention on this terminal pad 7, described vibration signal dish 6 by screw retention on this terminal pad 7.Tested vibration damper 4 and vibration damper positioning disk 5 are connected with gap fiting mode, compress with the workpiece housing screw, and transmit swing torque.Vibration damper positioning disk 5 and terminal pad 7 are connected with gap fiting mode, so that change vibration damper positioning disk 5 when changing product, compress with the positioning disk housing screw, and the transmission swing torque.Vibration signal dish 6 is welded with vibration transmission bar 9, as the swinging signal source.Vibration signal dish 6 is connected in the transition fit mode with terminal pad 7, compresses with the vibrating disk attachment screw, and transmits swing torque.
The present invention can also comprise the sensor mount 8 that is arranged on the described base 21, and this sensor mount 8 is provided with pilot hole, and described swing shaft 10 is located on the described pilot hole by bearing bracket stand, and described vibration transducer 28 is arranged on this sensor mount 8.
The present invention also comprises the adjustment bolt 29 that is threaded on the described rear support 14, and described spring 30 1 ends link to each other with described exciting case 12, and the other end links to each other with described adjustment bolt 29.
The present invention can also comprise and control desk 3 that the power line of described motor 1 is connected with the frequency converter of described control desk 3.Regulate speed governing (frequency conversion) turn-knob on the control desk 3, can change the electrical source of power frequency of motor 1, observe velocity indicator, make motor reach optimum speed.
The present invention also comprises the motor speed measuring gear 20 on the output shaft that is arranged on described motor 1, on the described base 21, and be provided with near switch 22 by support on the position relative with described motor speed measuring gear 20, this is connected near the velocity indicator of switch 22 with described control desk 3.
On support, adjust the distance with motor speed measuring gear 20, use the nut that carries near switch 22 to be fixed on the support pickoff signals.Signal wire near switch 22 is connected with the velocity indicator of control desk 3, can show the rotating speed of motor 1 on the velocity indicator on the control desk 3 in real time.
The present invention also comprises by being bolted to the motor installation base 24 on the described base 21, described motor 1 is fixed on the described motor installation base 24 by adjusting bolt 23, described adjustment bolt 23 1 ends are fixed on described motor installation base 24 by the nut and the nut of its head, and the other end is stated the bedplate of motor 1 by two nut clip residences.Can adjust the height of motor 1 with adjusting bolt 23, so that adjust the tightness of vee belt, the motor 1 usefulness motor gland nut of adjusting compresses connection.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a vibration damper vibration measuring testing table is characterized in that, comprising:
Base (21);
Be arranged on the motor (1) on the described base (21);
With first vibrating shaft (13) that described motor (1) links to each other by chain transmission or band transmission, described first vibrating shaft (13) is for excentric shaft or which is provided with decentralizing device; Swing shaft (10), on described base (21), the one end is provided with vibration damper positioning disk (5) and vibration signal dish (6) by bearings, is connected with vibration transmission bar (9) on this vibration signal dish (6);
Exciting case (12), it is set on the described swing shaft (10), these exciting case (12) both sides link to each other with rear support (14) by spring (30) respectively, and this rear support (14) is arranged on the described base (21), described first vibrating shaft (13) by bearings on this exciting case (12);
Be arranged on the described base (21), and with described vibration transmission bar (9) vibration transducer (28) of predeterminable range at interval;
The vialog (2) that links to each other with described vibration transducer (28).
2. vibration damper vibration measuring testing table as claimed in claim 1 is characterized in that described first vibrating shaft (13) is provided with first gear (16), and this first gear (16) is provided with decentralizing device (25).
3. vibration damper vibration measuring testing table as claimed in claim 2 is characterized in that, also comprises second vibrating shaft (15), and this second vibrating shaft (15) is provided with second gear with described first gear (16) engagement, and this second gear is provided with decentralizing device (25).
4. vibration damper vibration measuring testing table as claimed in claim 1 is characterized in that, described vibration transmission bar (9) is the plane towards that face of described vibration transducer (28).
5. vibration damper vibration measuring testing table as claimed in claim 1, it is characterized in that, also comprise the terminal pad (7) that is set on the described swing shaft (10), described vibration damper positioning disk (5) is sleeved on the described terminal pad (7) with clearance fit, and by screw retention on this terminal pad (7), described vibration signal dish (6) by screw retention on this terminal pad (7).
6. vibration damper vibration measuring testing table as claimed in claim 1, it is characterized in that, also comprise the sensor mount (8) that is arranged on the described base (21), this sensor mount (8) is provided with pilot hole, described swing shaft (10) is located on the described pilot hole by bearing bracket stand, and described vibration transducer (28) is arranged on this sensor mount (8).
7. vibration damper vibration measuring testing table as claimed in claim 1, it is characterized in that, also comprise the adjustment bolt (29) that is threaded on the described rear support (14), described spring (30) one ends link to each other with described exciting case (12), and the other end links to each other with described adjustment bolt (29).
8. vibration damper vibration measuring testing table as claimed in claim 1 is characterized in that, comprises also and control desk (3) that the power line of described motor (1) is connected with the frequency converter of described control desk (3).
9. vibration damper vibration measuring testing table as claimed in claim 8, it is characterized in that, also comprise the motor speed measuring gear (20) on the output shaft that is arranged on described motor (1), on the described base (21), and be provided with near switch (22) by support on the position relative with described motor speed measuring gear (20), this is connected near the velocity indicator of switch (22) with described control desk (3).
10. vibration damper vibration measuring testing table as claimed in claim 1, it is characterized in that, also comprise by being bolted to the motor installation base (24) on the described base (21), described motor (1) is fixed on the described motor installation base (24) by adjusting bolt (23), described adjustment bolt (23) one ends are fixed on described motor installation base (24) by the nut and the nut of its head, and the other end is stated the bedplate of motor (1) by two nut clip residences.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533126 CN102004030B (en) | 2010-11-05 | 2010-11-05 | Vibration measuring test bed for vibration absorber |
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|---|---|---|---|
| CN 201010533126 CN102004030B (en) | 2010-11-05 | 2010-11-05 | Vibration measuring test bed for vibration absorber |
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| CN102004030A true CN102004030A (en) | 2011-04-06 |
| CN102004030B CN102004030B (en) | 2012-03-28 |
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Cited By (13)
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| CN102319938A (en) * | 2011-09-05 | 2012-01-18 | 湘潭大学 | Double-drive rotary stirring submerged arc build-up welding sensor |
| CN102564746A (en) * | 2011-11-30 | 2012-07-11 | 淮安信息职业技术学院 | Fault monitoring and diagnosis experiment instrument for rotary part |
| CN102620920A (en) * | 2012-03-13 | 2012-08-01 | 南京航空航天大学 | High/low-temperature test board of controllable electromagnetic damper |
| CN103604575A (en) * | 2013-10-22 | 2014-02-26 | 航天科工防御技术研究试验中心 | Vibration isolator accelerated aging failure criterion determining method |
| CN105092236A (en) * | 2015-09-10 | 2015-11-25 | 中铁大桥科学研究院有限公司 | Device and method used for testing rotation damping coefficients of eddy current damper |
| CN105092229A (en) * | 2015-08-31 | 2015-11-25 | 河南省重业起重机有限公司 | Crane vibration damping test platform |
| CN105527088A (en) * | 2016-01-18 | 2016-04-27 | 天津大学 | Fatigue test stand for torsion damper and fatigue test method thereof |
| CN107831002A (en) * | 2017-11-06 | 2018-03-23 | 天津航天瑞莱科技有限公司 | In the air by the experimental rig of oily feeler lever shock absorber |
| CN107843444A (en) * | 2017-10-26 | 2018-03-27 | 海门市铁路机车车辆配件厂有限公司 | Test the testing stand and its test method of oil-pressure damper being hit by a bullet property part performance |
| CN109374123A (en) * | 2018-12-14 | 2019-02-22 | 蚌埠学院 | A kind of large scale equipment intrinsic frequency measuring device |
| CN110000076A (en) * | 2019-04-04 | 2019-07-12 | 大连理工大学 | A kind of novel simple harmonic excitation device of available excitation and response data |
| CN111076883A (en) * | 2020-02-29 | 2020-04-28 | 青岛军平减震科技有限公司 | Vibration damping property detection device for shock absorber |
| CN116818245A (en) * | 2023-08-28 | 2023-09-29 | 山东金彭新能源科技有限公司 | Automobile cantilever beam detection table |
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Cited By (18)
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| CN102319938A (en) * | 2011-09-05 | 2012-01-18 | 湘潭大学 | Double-drive rotary stirring submerged arc build-up welding sensor |
| CN102564746A (en) * | 2011-11-30 | 2012-07-11 | 淮安信息职业技术学院 | Fault monitoring and diagnosis experiment instrument for rotary part |
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| CN102620920A (en) * | 2012-03-13 | 2012-08-01 | 南京航空航天大学 | High/low-temperature test board of controllable electromagnetic damper |
| CN102620920B (en) * | 2012-03-13 | 2014-05-07 | 南京航空航天大学 | High/low-temperature test board of controllable electromagnetic damper |
| CN103604575A (en) * | 2013-10-22 | 2014-02-26 | 航天科工防御技术研究试验中心 | Vibration isolator accelerated aging failure criterion determining method |
| CN105092229A (en) * | 2015-08-31 | 2015-11-25 | 河南省重业起重机有限公司 | Crane vibration damping test platform |
| CN105092229B (en) * | 2015-08-31 | 2017-06-09 | 河南省重业起重机有限公司 | A kind of crane vibration damping test platform |
| CN105092236B (en) * | 2015-09-10 | 2017-12-22 | 中国铁路总公司 | A kind of device and method for testing eddy current damper damping due to rotation coefficient |
| CN105092236A (en) * | 2015-09-10 | 2015-11-25 | 中铁大桥科学研究院有限公司 | Device and method used for testing rotation damping coefficients of eddy current damper |
| CN105527088A (en) * | 2016-01-18 | 2016-04-27 | 天津大学 | Fatigue test stand for torsion damper and fatigue test method thereof |
| CN107843444A (en) * | 2017-10-26 | 2018-03-27 | 海门市铁路机车车辆配件厂有限公司 | Test the testing stand and its test method of oil-pressure damper being hit by a bullet property part performance |
| CN107831002A (en) * | 2017-11-06 | 2018-03-23 | 天津航天瑞莱科技有限公司 | In the air by the experimental rig of oily feeler lever shock absorber |
| CN109374123A (en) * | 2018-12-14 | 2019-02-22 | 蚌埠学院 | A kind of large scale equipment intrinsic frequency measuring device |
| CN110000076A (en) * | 2019-04-04 | 2019-07-12 | 大连理工大学 | A kind of novel simple harmonic excitation device of available excitation and response data |
| CN111076883A (en) * | 2020-02-29 | 2020-04-28 | 青岛军平减震科技有限公司 | Vibration damping property detection device for shock absorber |
| CN116818245A (en) * | 2023-08-28 | 2023-09-29 | 山东金彭新能源科技有限公司 | Automobile cantilever beam detection table |
| CN116818245B (en) * | 2023-08-28 | 2023-11-17 | 山东金彭新能源科技有限公司 | Automobile cantilever beam detection table |
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